US4785992A - Container and method of making the same - Google Patents
Container and method of making the same Download PDFInfo
- Publication number
- US4785992A US4785992A US06/411,124 US41112482A US4785992A US 4785992 A US4785992 A US 4785992A US 41112482 A US41112482 A US 41112482A US 4785992 A US4785992 A US 4785992A
- Authority
- US
- United States
- Prior art keywords
- plastic material
- tubular body
- extreme
- closure
- closure member
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D3/00—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines
- B65D3/22—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines with double walls; with walls incorporating air-chambers; with walls made of laminated material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D15/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, sections made of different materials
- B65D15/02—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, sections made of different materials of curved, or partially curved, cross-section, e.g. cans, drums
- B65D15/04—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, sections made of different materials of curved, or partially curved, cross-section, e.g. cans, drums with curved, or partially curved, walls made by winding or bending paper
- B65D15/08—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, sections made of different materials of curved, or partially curved, cross-section, e.g. cans, drums with curved, or partially curved, walls made by winding or bending paper with end walls made of plastics material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B2105/00—Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs
- B31B2105/002—Making boxes characterised by the shape of the blanks from which they are formed
- B31B2105/0022—Making boxes from tubular webs or blanks, e.g. with separate bottoms, including tube or bottom forming operations
Definitions
- This relates in general to new and useful improvements in container constructions, and more particularly to a container bottom structure.
- This invention particularly relates to the forming of a plastic cup end or bottom for a tubular container body which is preferably of a composite construction, i.e. one wherein the body may be of a wound laminated paper construction which may include a barrier layer and wherein the body has a liner formed of a plastic material which may either be a coating or a film or plastic material.
- a composite end construction which includes generally a plastic cup having a peripheral flange.
- the cup is preferably molded in situ within the one end of the tubular body and is formed from a sheet of plastic material which is heated and then pressed into the one end of the tubular body using a suitable punch or die member.
- the plastic material of the liner and the plastic material of the sheet are preferably of a heat bondable material and the sheet is heated to a sufficiently high temperature wherein it is both moldable and heat bondable to the liner.
- the closure member formed from the sheet is of a cup shape within the end of the tubular body so that it may receive a reinforcing disk which may be inexpensively formed of paper or like material.
- the extreme end portions of the tubular body at the one end thereof are rolled or curled radially inwardly with the peripheral flange of the closure being directed into abutment with the disk.
- the other end of the tubular body after it has been filled with a product, may be closed utilizing a metal end unit with the same forming portion of the end unit being outwardly flared so as to receive the bottom end of a like next above container in nested or stacked relation.
- FIG. 1 is a perspective view of a container formed in accordance with this invention.
- FIG. 2 is a longitudinal sectional view showing the initial relationship of the container tubular body and a plastic material sheet from which a closure is formed.
- FIG. 3 is a sectional view similar to FIG. 2, and shows a punch or die member having pressed the sheet into the interior of the tubular body at one end to form the necessary closure.
- FIG. 4 is another sectional view similar to FIG. 2, and shows the application of a reinforcing disk within the cup-shaped portion of the closure.
- FIG. 5 is another sectional view similar to FIG. 2, and shows the extreme end portion of the tubular body having been rolled or curled radially inwardly to complete the bottom construction.
- FIG. 6 is an enlarged fragmentary sectional view showing the specifics of the bottom construction.
- FIG. 7 is a fragmentary sectional view between two containers formed in accordance with the invention with the containers being in stacked relation.
- FIG. 1 a container formed in accordance with this invention.
- the container is generally identified by the numeral 10 and is of a three-piece construction.
- the container 10 includes a tubular body 12, a bottom end construction 14, and a top end unit 16.
- the tubular body 12 is preferably of a composite construction and may include layers of paper which are spirally wound and bonded together. Further, the paper layers may have incorporated therein a barrier layer formed of a suitable plastic material or a metal foil.
- the tubular body 12 composite construction is identified by the numeral 16 and carries on the inner surface thereof a plastic material liner 18.
- the liner 18 normally will be in the form of a film layer of plastic material, although it may be in the form of a plastic material coating.
- the first step in forming the container 10 after the desired length tubular body 12 has been formed from a longer or continuous length of tubular stock is to form a bottom construction which closes the bottom end of the tubular body 12 in sealing relation.
- a plastic material sheet 20 which may be in the form of an individual blank or which may be an intermediate portion of a continuous web.
- the plastic material sheet 20 is heated so that it not only may be readily moldable, but also that it may be at such an elevated temperature when applied to the tubular body 12, the plastic material thereof will automatically heat bond to the plastic material of the liner 18.
- a stepped punch or die 22 having a smaller diameter end portion 24 and a larger diameter portion 26 carried by a suitable shaft or rod 27.
- the diameter of the smaller punch portion 24 is slightly less than the internal diameter of the tubular body 12.
- the closure 28 will include an end panel 30 which is recessed within the tubular body 12 and a cylindrical portion 32 which is also recessed within the tubular body 12.
- the end panel 30 is recessed within the tubular body 12 and together with the cylindrical portion 32 defines a closure of a generally inverted cup shape.
- the larger diameter punch 26 carries the outer peripheral portion of the sheet 20 and forces the same against the extreme end of the tubular body 12 to define a peripheral flange 34.
- the flange 34 together with the cup-shaped central portion of the closure 28, defines what may be considered a hat-shaped closure with the peripheral flange 34 bearing tightly against the extreme end of the tubular body 12 and having a certain degree of bond therewith.
- the tubular body 12 with the closure member 28 applied is moved to a next station wherein a disk 36 is inserted into the cup-shaped portion of the closure member 28 to reinforce the same.
- the disk 36 is preferably of a paper construction, but may be of a suitable composite construction.
- the resultant bottom construction which is generally identified by the numeral 14, includes a plastic material closure member 28 which is in part defined by an inverted cup-shaped portion.
- the cup-shaped portion includes an end panel or wall 30 and a cylindrical wall portion 32 with the cylindrical wall 32 being heat bonded to the liner 18 as afore described. That portion of the cylindrical wall 32 which depends below the reinforcing disk 36 is reversely folded upon itself as at 40 and the peripheral flange 34 directly underlies and bears against the reinforcing disk 36. Since the peripheral flange 34 is at a bonding temperature when it is pressed against the underside of the reinforcing disk 36, a certain degree of adhesion occurs. It will be seen that the extreme lower part of the tubular body 12 is completely reversely turned to define a curl 42 which serves positively to anchor the bottom end of the construction 14.
- the top end unit 16 be formed of sheet metal and include an end panel 44 and a peripheral bead portion 46 which is interlocked and rolled or beaded together with an extreme upper part 48 of the tubular body 12. Further, the peripheral bead portion 46 is upwardly and radially outwardly flared to define a tapered seat 50 into which the bottom construction 14 of the container may readily seat.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Containers With Two Or More Constituent Elements (AREA)
- Making Paper Articles (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Description
Claims (5)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/411,124 US4785992A (en) | 1982-08-24 | 1982-08-24 | Container and method of making the same |
CA000429016A CA1241608A (en) | 1982-08-24 | 1983-05-26 | Container and method of making the same |
JP58105087A JPS5937138A (en) | 1982-08-24 | 1983-06-14 | Vessel and its manufacture |
DE19833330188 DE3330188A1 (en) | 1982-08-24 | 1983-08-20 | CONTAINER WITH A CYLINDRICAL HULL AND METHOD FOR THE PRODUCTION THEREOF |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/411,124 US4785992A (en) | 1982-08-24 | 1982-08-24 | Container and method of making the same |
Publications (1)
Publication Number | Publication Date |
---|---|
US4785992A true US4785992A (en) | 1988-11-22 |
Family
ID=23627666
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US06/411,124 Expired - Fee Related US4785992A (en) | 1982-08-24 | 1982-08-24 | Container and method of making the same |
Country Status (4)
Country | Link |
---|---|
US (1) | US4785992A (en) |
JP (1) | JPS5937138A (en) |
CA (1) | CA1241608A (en) |
DE (1) | DE3330188A1 (en) |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4971241A (en) * | 1990-01-03 | 1990-11-20 | Greif Brothers Corporation | Fast flo drums |
US4984415A (en) * | 1987-04-07 | 1991-01-15 | Fuso Pharmaceutical Industries, Ltd. | Method and apparatus for blockading an opening through a cylindrical mouthpiece of a synthetic resin container |
US5236120A (en) * | 1989-11-22 | 1993-08-17 | Yhtyneet Paperithehtaat Oy | Container and a lid for closing the same |
US5255874A (en) * | 1992-07-09 | 1993-10-26 | Roussel Jean Claude P A | Wheel protector |
US5669523A (en) * | 1994-07-09 | 1997-09-23 | Ruediger Haaga Gmbh | Non-metallic stackable containers with spaced supporting surfaces |
US5740914A (en) * | 1996-07-22 | 1998-04-21 | Anchor Hocking Packaging Co. | Closure for stacking containers of different sizes |
US5816438A (en) * | 1994-03-29 | 1998-10-06 | Multisorb Technologies, Inc. | Canister with porous plastic ends |
US5851630A (en) * | 1997-01-27 | 1998-12-22 | Westvaco Corporation | Container and blank for "duckbill" elimination |
US6058682A (en) * | 1994-03-07 | 2000-05-09 | The Pillsbury Company | Method for sealing a container |
US20040056036A1 (en) * | 2002-09-25 | 2004-03-25 | Bi-Hua Tsai | Utensil set |
US20040173493A1 (en) * | 2003-03-07 | 2004-09-09 | Ray Pope | Food-transport tray |
US20050184074A1 (en) * | 2004-02-19 | 2005-08-25 | Simmons Michael J. | Containers, sleeves and lids therefor, assemblies thereof, and holding structure therefor |
US20060022021A1 (en) * | 2004-07-27 | 2006-02-02 | Weidenhammer Packaging Lp | Commercial bulk ice cream or frozen novelty container and method of manufacture |
US20060021988A1 (en) * | 2004-07-27 | 2006-02-02 | Weidenhammer Packaging Lp | Rings and containers for packaging |
US20080053854A1 (en) * | 2006-08-31 | 2008-03-06 | Syngenta Participations, Ag | Systems and methods for packaging trays of plantlets |
US7699216B2 (en) | 2003-11-26 | 2010-04-20 | Solo Cup Operating Corporation | Two-piece insulated cup |
US20110095030A1 (en) * | 2009-10-28 | 2011-04-28 | Dave Dunn | Container assembly having a heat-sealed metal end, a metal end therefor, and a method for making same |
US20120067765A1 (en) * | 2009-05-13 | 2012-03-22 | Kabushiki Kaisha Yakult Honsha | Method For Producing Food Filled and Sealed Container |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0444611A3 (en) * | 1990-02-26 | 1992-02-12 | Fuji Photo Film Co., Ltd. | Package for photographic film cartridge |
DE102010060277A1 (en) * | 2010-10-29 | 2012-05-03 | Vg Nicolaus Gmbh & Co. Kg | Cylindrical packaging for pasty products |
CN109940923A (en) * | 2019-03-22 | 2019-06-28 | 李晓鹏 | A kind of processing technology of container of wipes |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1538085A (en) * | 1923-04-13 | 1925-05-19 | Nat Paper Can Company | Container |
US1650520A (en) * | 1924-05-05 | 1927-11-22 | Johnson Smith Madison | Container |
US1876484A (en) * | 1932-09-06 | Paper container | ||
US2106738A (en) * | 1935-12-19 | 1938-02-01 | John K M Harrison | Paper and analogous material container |
US2370018A (en) * | 1943-09-02 | 1945-02-20 | Canister Company | Container and closure therefor |
US3116001A (en) * | 1963-12-31 | Top and bottom chine construction for | ||
FR1408391A (en) * | 1964-06-26 | 1965-08-13 | Spirapo | Cardboard drum with incorporated waterproof cover |
US3288342A (en) * | 1964-12-18 | 1966-11-29 | Continental Can Co | Buttressed offset rim drum end closure |
US3315865A (en) * | 1965-01-04 | 1967-04-25 | Inland Steel Co | Stackable fiber drum |
US3349956A (en) * | 1965-07-09 | 1967-10-31 | Du Pont | Article of manufacture |
US4057444A (en) * | 1974-09-20 | 1977-11-08 | The Mead Corporation | Method for manufacture of containers, particularly for packing purposes |
-
1982
- 1982-08-24 US US06/411,124 patent/US4785992A/en not_active Expired - Fee Related
-
1983
- 1983-05-26 CA CA000429016A patent/CA1241608A/en not_active Expired
- 1983-06-14 JP JP58105087A patent/JPS5937138A/en active Pending
- 1983-08-20 DE DE19833330188 patent/DE3330188A1/en not_active Withdrawn
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1876484A (en) * | 1932-09-06 | Paper container | ||
US3116001A (en) * | 1963-12-31 | Top and bottom chine construction for | ||
US1538085A (en) * | 1923-04-13 | 1925-05-19 | Nat Paper Can Company | Container |
US1650520A (en) * | 1924-05-05 | 1927-11-22 | Johnson Smith Madison | Container |
US2106738A (en) * | 1935-12-19 | 1938-02-01 | John K M Harrison | Paper and analogous material container |
US2370018A (en) * | 1943-09-02 | 1945-02-20 | Canister Company | Container and closure therefor |
FR1408391A (en) * | 1964-06-26 | 1965-08-13 | Spirapo | Cardboard drum with incorporated waterproof cover |
US3288342A (en) * | 1964-12-18 | 1966-11-29 | Continental Can Co | Buttressed offset rim drum end closure |
US3315865A (en) * | 1965-01-04 | 1967-04-25 | Inland Steel Co | Stackable fiber drum |
US3349956A (en) * | 1965-07-09 | 1967-10-31 | Du Pont | Article of manufacture |
US4057444A (en) * | 1974-09-20 | 1977-11-08 | The Mead Corporation | Method for manufacture of containers, particularly for packing purposes |
Cited By (36)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4984415A (en) * | 1987-04-07 | 1991-01-15 | Fuso Pharmaceutical Industries, Ltd. | Method and apparatus for blockading an opening through a cylindrical mouthpiece of a synthetic resin container |
US5236120A (en) * | 1989-11-22 | 1993-08-17 | Yhtyneet Paperithehtaat Oy | Container and a lid for closing the same |
US4971241A (en) * | 1990-01-03 | 1990-11-20 | Greif Brothers Corporation | Fast flo drums |
US5255874A (en) * | 1992-07-09 | 1993-10-26 | Roussel Jean Claude P A | Wheel protector |
US6058682A (en) * | 1994-03-07 | 2000-05-09 | The Pillsbury Company | Method for sealing a container |
US5833784A (en) * | 1994-03-29 | 1998-11-10 | Multisorb Technologies, Inc. | Method of fabricating canister with porous plastic ends |
US5816438A (en) * | 1994-03-29 | 1998-10-06 | Multisorb Technologies, Inc. | Canister with porous plastic ends |
US5824140A (en) * | 1994-03-29 | 1998-10-20 | Multisorb Technologies, Inc. | Canister with porous plastic ends |
US5879490A (en) * | 1994-03-29 | 1999-03-09 | Multisorb Technologies, Inc. | Method of fabricating canister with porous plastic ends |
US5942060A (en) * | 1994-03-29 | 1999-08-24 | Berger; Lora L. | Method of fabricating canister with porous plastic ends |
US5669523A (en) * | 1994-07-09 | 1997-09-23 | Ruediger Haaga Gmbh | Non-metallic stackable containers with spaced supporting surfaces |
US5740914A (en) * | 1996-07-22 | 1998-04-21 | Anchor Hocking Packaging Co. | Closure for stacking containers of different sizes |
US5851630A (en) * | 1997-01-27 | 1998-12-22 | Westvaco Corporation | Container and blank for "duckbill" elimination |
US20040056036A1 (en) * | 2002-09-25 | 2004-03-25 | Bi-Hua Tsai | Utensil set |
US7017798B2 (en) * | 2003-03-07 | 2006-03-28 | Tin Inc. | Food-transport tray |
US20040173493A1 (en) * | 2003-03-07 | 2004-09-09 | Ray Pope | Food-transport tray |
WO2004080823A2 (en) * | 2003-03-07 | 2004-09-23 | Inland Paperboard And Packaging, Inc. | Food-transport tray |
WO2004080823A3 (en) * | 2003-03-07 | 2005-03-31 | Inland Paperboard And Packagin | Food-transport tray |
US7699216B2 (en) | 2003-11-26 | 2010-04-20 | Solo Cup Operating Corporation | Two-piece insulated cup |
US20100264201A1 (en) * | 2003-11-26 | 2010-10-21 | Stephen Alan Smith | Two-piece insulated cup |
US20050184074A1 (en) * | 2004-02-19 | 2005-08-25 | Simmons Michael J. | Containers, sleeves and lids therefor, assemblies thereof, and holding structure therefor |
US7380685B2 (en) * | 2004-02-19 | 2008-06-03 | Simmons Michael J | Containers, sleeves and lids therefor, assemblies thereof, and holding structure therefor |
US20080048016A1 (en) * | 2004-02-19 | 2008-02-28 | Simmons Michael J | Containers, sleeves and lids therefor, assemblies thereof, and holding structure therefor |
US7617967B2 (en) | 2004-07-27 | 2009-11-17 | Abro Weidenhammer Gmbh | Rings and containers for packaging |
US20060022021A1 (en) * | 2004-07-27 | 2006-02-02 | Weidenhammer Packaging Lp | Commercial bulk ice cream or frozen novelty container and method of manufacture |
US7458500B2 (en) * | 2004-07-27 | 2008-12-02 | Abro Weidenhammer Gmbh | Commercial bulk ice cream or frozen novelty container and method of manufacture |
US20060021988A1 (en) * | 2004-07-27 | 2006-02-02 | Weidenhammer Packaging Lp | Rings and containers for packaging |
US20080149693A1 (en) * | 2004-07-27 | 2008-06-26 | Abro Weidenhammer Gmbh | Commercial bulk ice cream or frozen novelty container and method of manufacture |
US20080053854A1 (en) * | 2006-08-31 | 2008-03-06 | Syngenta Participations, Ag | Systems and methods for packaging trays of plantlets |
US20120067765A1 (en) * | 2009-05-13 | 2012-03-22 | Kabushiki Kaisha Yakult Honsha | Method For Producing Food Filled and Sealed Container |
US8943784B2 (en) * | 2009-05-13 | 2015-02-03 | Kabushiki Kaisha Yakult Honsha | Method for producing food filled and sealed container |
US20110095030A1 (en) * | 2009-10-28 | 2011-04-28 | Dave Dunn | Container assembly having a heat-sealed metal end, a metal end therefor, and a method for making same |
US9150328B2 (en) * | 2009-10-28 | 2015-10-06 | Sonoco Development, Inc. | Container assembly having a heat-sealed metal end, a metal end therefor, and a method for making same |
US9789996B2 (en) | 2009-10-28 | 2017-10-17 | Sonoco Development, Inc. | Container assembly having a heat-sealed metal end, a metal end therefor, and a method for making same |
US10532851B2 (en) | 2009-10-28 | 2020-01-14 | Sonoco Development, Inc. | Container assembly having a heat-sealed metal end, a metal end therefor, and a method for making same |
US11628969B2 (en) | 2009-10-28 | 2023-04-18 | Sonoco Development, Inc. | Container assembly having a heat-sealed metal end, a metal end therefor, and a method for making same |
Also Published As
Publication number | Publication date |
---|---|
CA1241608A (en) | 1988-09-06 |
DE3330188A1 (en) | 1984-03-01 |
JPS5937138A (en) | 1984-02-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: CONTINENTAL CAN COMPANY, INC., ONE HARBOR PLAZA, S Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:GOEPPNER, RONALD R.;REEL/FRAME:004040/0046 Effective date: 19820817 |
|
FEPP | Fee payment procedure |
Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
FEPP | Fee payment procedure |
Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY Free format text: PAYER NUMBER DE-ASSIGNED (ORIGINAL EVENT CODE: RMPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
FPAY | Fee payment |
Year of fee payment: 4 |
|
FPAY | Fee payment |
Year of fee payment: 8 |
|
REMI | Maintenance fee reminder mailed | ||
LAPS | Lapse for failure to pay maintenance fees | ||
FP | Lapsed due to failure to pay maintenance fee |
Effective date: 20001122 |
|
AS | Assignment |
Owner name: SONOCO DEVELOPMENT, INC., SOUTH CAROLINA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CROWN CORK & SEAL TECHNOLOGIES CORPORATION AS SUCCESSOR TO CONTINENTAL CAN COMPANY, INC.;REEL/FRAME:014210/0888 Effective date: 20030604 |
|
STCH | Information on status: patent discontinuation |
Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |